Since the TSA is so hell-bent on ridding the world of Swiss Army Knife scourge, you'll need some James Bond moves to keep your tools within reach when traveling—like concealing them in your shirt collar as titanium multi-functional collar stays.
These 100 percent titanium collar stays are exceedingly light—just .4 ounces—and fit all spread, wide spread, close spread, and semi-spread collars. When they aren't keeping your collar points perky, these stays can be used as a half-Phillips screwdriver, slotted screwdriver, thread cutter, and bottle opener. A pair retails for $30 at Uncommon Goods. [Uncommon Goods via Better Living Through Design]